Genista monspessulana

Genista monspessulana_French broom_JM DiTomaso
Photo courtesy Joseph DiTomaso

Synonyms: Cytisus monpsessulana, C. racemosus, C. canariensis, Gensita monspessulana, Teline monspessulana

Common names: French broom; soft broom; canary broom; Montepellier broom

Genista monspessulana (French broom) is a perennial shrub (family Fabaceae) found in the Coast Ranges, Sierra Nevada foothills, Transverse Ranges, Channel Islands and San Francisco Bay area. French broom was introduced as a landscape ornamental, along with Scotch and Spanish broom. French broom is an aggressive invader, forming dense stands that exclude native plants and wildlife. Broom is unpalatable to most livestock except goats, so it decreases rangeland value while increasing fire hazards. These leguminous plants produce copious amounts of seed, and may resprout from the root crown if cut or grazed.

Cal-IPC Rating: High

Cal-IPC Assessment

Plant Assessment Form - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.

Cal-IPC Newsletter Articles

Cal-IPC Symposium Presentations

  • Kleist, A. C. and M. Jasieniuk (2010). Origins of invasive French broom. Cal-IPC 2010 Symposium Ventura, CA, California Invasive Plant Council
  • Kesel, R. (2009). Urban invasions: Analyzing recovery of habitat fragments in San Francisco following the removal of Genista monspessulana and Delairea odorata. Cal-IPC Symposium 2009. Visalia, CA, California Invasive Plant Council.
  • Kleist, A. and M. Jasieniuk (2009). Genetic identity and phylogenetic relationships of invasive brooms in California. Cal-IPC Symposium 2009. Visalia, CA, California Invasive Plant Council.
  • Moore, K. and C. Bossard (2009). Sinapis alba seed meal as a pre-emergent control for French broom (Genista monspessulana) seedlings. Cal-IPC Symposium 2009. Visalia, CA, California Invasive Plant Council.
  • Moore, K. and C. Bossard (2008). Sinapsis alba seed meal as a pre -emergent control for French broom (Genista monspessulana) seedlings. California Invasive Plant Council Symposium 2008. Chico, CA, California Invasive Plant Council.
  • Klein, J. and C. Hoglander (2007). The efficacy of alternative herbicides on non-native invasive woody broadleaf perennials. California Invasive Plant Council Symposium 2007. San Diego, CA, California Invasive Plant Council.
  • Klein, J. (2006). Pseudo-replication, no replication, and a complete lack of control: In praise of dirty data for weed managers. Cal-IPC Symposium. Rohnert Park, CA.
  • Bossard, C., K. Moore, et al. (2005). A test of repeat flaming as a control for poison hemlock (Conium maculatum), Cape ivy (Delairia odorata), and periwinkle (Vinca major). California Invasive Plant Council Symposium 2005. Chico, CA.
  • Heath, M., K. Moore, et al. (2005). Trees and shrubs discussion group. California Invasive Plant Council Symposium 2005. Chico, CA.
  • Klein, J. and S. Fiala (2005). Effects of single pass flaming on previously brush-cut Genista monspessulana. California Invasive Plant Council Symposium 2005. Chico, CA.
  • Clines, J., J. DiTomaso, et al. (2004). Fire working group. California Invasive Plant Council Symposium 2004. Ventura, CA.
  • Klein, J. (2004). Weeds in wildland/urban interface fuelbreaks: Challenges and opportunities. California Invasive Plant Council Symposium 2004. Ventura, CA.
  • Knapp, J. (2004). A gardener's dream, a land manager's nightmare: The spread of horticultural invasive plants into the wildlands of Santa Catalina Island. California Invasive Plant Council Symposium 2004. Ventura, CA.
  • Moore, K. (2004). Flaming: A new tool for wildland weed control. California Invasive Plant Council Symposium 2004. Ventura, CA.
  • Corbin, J. D. and C. M. D'Antonio (2003). Too much of a good thing: Restoration of native biodiversity following soil nitrogen enrichment. California Invasive Plant Council Symposium 2003. Kings Beach, CA.
  • Gluesenkamp, D. (2003). Marin-Sonoma Weed Management Area: Putting the 'we' in weed management. California Invasive Plant Council Symposium 2003. Kings Beach, CA.
  • Lienk, L. L. (2002). Eradicating, educating, and enticing: Having fun with the war on weeds. California Exotic Pest Plant Council Symposium 2002. Sacramento, CA.
  • Alexander, J. M. F. and C. M. D'Antonio (2000). Factors affecting successful control of French and Scotch broom and restoration of native communities in coastal California grasslands. California Exotic Pest Plant Council Symposium 2000. Concord, CA.
  • Briscoe, E. and T. Anderson (2000). War on weeds - invasive weed education and outreach program. California Exotic Pest Plant Council Symposium 2000. Concord, CA.
  • Archbald, G. (1998). Mechanical control methods: beyond weed bashing. California Exotic Pest Plant Council Symposium '98. Ontario, CA.
  • DiTomaso, J. M. (1995). Overview of extension non-crop weed research in California. California Exotic Pest Plant Council Symposium '95. J. Lovich, J. Randall and M. Kelly. Pacific Grove, CA.

Other Genista monspessulana Information

  • CalPhotos - Images of plants taken mostly in California.
  • CalFlora - Distribution information based on submitted observations and herbarium specimens.
  • CalWeedMapper - Distribution information with ability to determine regional priorities.
  • Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Federal database with information on identification and distribution, and links to websites in individual states.